The Californian university once again proves that the reputation of being one of the best in the world is not unfounded. It has the ability to refine search for literature in a wide range of time (back to the year 1812). The search engine is very precise. The disadvantage is its access to only a part of the collections free of charge. Some literature can be ordered. Prices vary. Access to abstracts and bibliography free of charge. Ability to download files in PDF format.